A Decade of Thoracic Endovascular Aortic Aneurysm Repair in New York State: Volumes, Outcomes, and Implications for the Dissemination of Endovascular Technology.

Abstract:

BACKGROUND:The purpose of this study was to characterize utilization and outcomes of thoracic endovascular aortic aneurysm repair (TEVAR) in New York State during the first decade of commercial availability, with respect to evolving indications, results, and costs. Of specific interest was evaluation of the volume-outcome relationship for this relatively uncommon procedure. METHODS:The New York Statewide Planning and Research Cooperative System database was queried to identify patients undergoing TEVAR from 2005 to 2014 for aortic dissection (AD), non-ruptured aneurysm (NRA), and ruptured aneurysm (RA). Outcomes assessed included in-hospital mortality, complications, and costs. Linkage to the National Provider Identifier and New York Office of Professions databases facilitated comparisons by surgeon and facility volume. RESULTS:One thousand eight hundred thirty-eight patients were identified: 334 AD, 226 RA, and 1,278 NRA. Since introduction, TEVAR implantation increased significantly over the 10-year period in all groups (P < 0.01), with recent increase in utilization for AD. Increased in-hospital mortality correlated with RA (OR 5.52 [3.02-10.08], P < 0.01), coagulopathy (3.38 [2.02-5.66], P < 0.01), cerebrovascular disease (2.47 [1.17-5.22], P = 0.02), and nonwhite/nonblack race (1.74 [1.08-2.82], P = 0.02). Early in the experience (2005-2007), patients were more likely to be treated at high-volume facilities (>17 per year) and by high-volume surgeons (>5 per year), (P < 0.01). Since 2011, however, most patients (53%) have undergone TEVAR by low-volume surgeons (<3 per year). Neither surgeon nor hospital volume was associated with clinical outcomes. CONCLUSIONS:Since the introduction of TEVAR, comparable results have been obtained across hospital and surgeon volume strata. Favorable outcomes, even in low-volume settings, underscore the complexity of volume-outcome relationships in high-acuity procedures. These findings have implications for credentialing, regionalization, and future dissemination of advanced endovascular technology.

journal_name

Ann Vasc Surg

authors

Stern JR,Sun T,Mao J,Sedrakyan A,Meltzer AJ

doi

10.1016/j.avsg.2018.03.029

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

123-133

eissn

0890-5096

issn

1615-5947

pii

S0890-5096(18)30368-6

journal_volume

54

pub_type

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